Viessmann Vitocal 200-S, Инструкция по установке и обслуживанию

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64
1. Open any non-return valves installed
on site.
2. Check the pre-charge pressure of the
expansion vessel and top up if
required.
3. Fill (flush) and vent the secondary cir-
cuit via an on-site connection.
F E
D C
Safety assembly supplied
C Pressure gauge
D Connection G¾
E Quick-action air vent valve
F Safety valve
4. Check the system pressure at pres-
sure gauge
C
and top up with water
if required.
Minimum system pressure: 0.8 bar
(80 kPa)
Permiss. operating pressure: 3.0 bar
(0.3 MPa)
5. Place the control panel in its service
position; see page 81.
6. Open programming unit; see
page 79.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5782 176 GB